National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat Wave Continues; Enhanced Area of Severe Thunderstorms Today

A prolonged, dangerous heat wave will continue today in the Midwest and Mississippi Valley, and persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Widespread moderate to extreme HeatRisk is forecast. Scattered wind damage and large hail are expected from severe thunderstorms impacting parts of Nebraska into Iowa today. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.

NA

84°F

29°C

Humidity 27%
Wind Speed E 9 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Heat Index82°F (28°C)
Last update 03 Jul 01:00 PM PDT
Extended Forecast for

13 Miles NE Mount Hamilton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. North northeast wind around 7 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 56. West southwest wind 5 to 7 mph.

    Low: 56 °F

    Clear

  • Independence Day

    Independence Day: Sunny, with a high near 84. Light and variable wind becoming east northeast 5 to 7 mph in the morning.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56. West southwest wind around 6 mph.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 80. West southwest wind 5 to 7 mph becoming north northeast in the morning.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 81. North northeast wind around 7 mph.
Tonight
Clear, with a low around 56. West southwest wind 5 to 7 mph.
Independence Day
Sunny, with a high near 84. Light and variable wind becoming east northeast 5 to 7 mph in the morning.
Saturday Night
Partly cloudy, with a low around 56. West southwest wind around 6 mph.
Sunday
Mostly sunny, with a high near 80. West southwest wind 5 to 7 mph becoming north northeast in the morning.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 79.
Monday Night
Clear, with a low around 52.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Clear, with a low around 55.
Thursday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NE Mount Hamilton CA
 37.49°N 121.48°W (Elev. 2799 ft)
Last Update:
2:00 pm PDT Jul 3, 2026
Forecast Valid:
2pm PDT Jul 3, 2026-6pm PDT Jul 9, 2026
 
Forecast Discussion
 
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Additional Resources

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